Gilger J W, Ho H Z, Whipple A D, Spitz R
Department of Child and Family Studies, California State University, Los Angeles 90032, USA.
J Learn Disabil. 2001 Nov-Dec;34(6):492-502. doi: 10.1177/002221940103400602.
Recent behavioral genetic research has shown that genetic propensities are associated with individual differences in experiences, and thus, what may appear to be environmental effects can reflect genetic influence. This study examines passive genotype-environment correlations (GECs) for language-related abilities by comparing environment-child language associations in adoptive and nonadoptive families. The results provide evidence for the genetic mediation of the association between home environmental variables, such as the provision of toys and games, maternal involvement, and degree of intellectual/cultural orientation with children's language-related abilities. Developmental changes in passive GECs are considered, and the implications for typical and atypical learners are discussed.
近期的行为遗传学研究表明，遗传倾向与个体经历的差异相关，因此，看似环境影响的因素可能反映了遗传影响。本研究通过比较收养家庭和非收养家庭中环境与儿童语言能力的关联，考察了与语言相关能力的被动基因型 - 环境相关性（GECs）。研究结果为家庭环境变量（如玩具和游戏的提供、母亲的参与度以及智力/文化导向程度）与儿童语言相关能力之间的关联的遗传介导作用提供了证据。文中考虑了被动GECs的发展变化，并讨论了其对典型和非典型学习者的意义。
